struct video_device *devnode;
/* pointer to the physical device, if any */
struct device *dev;
+ /* The device_node of the subdev, usually the same as dev->of_node. */
+ struct device_node *of_node;
/* Links this subdev to a global subdev_list or @notifier->done list. */
struct list_head async_list;
/* Pointer to respective struct v4l2_async_subdev. */